// 1999-10-14 bkoz // Copyright (C) 1999, 2001, 2003, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . // 27.6.1.1.2 class basic_istream::sentry #include #include #include void test01() { bool test __attribute__((unused)) = true; const char* lit01 = "stereolab on the bolsinga tip"; const std::string str01(lit01); std::stringbuf strbuf01; std::stringbuf strbuf02(str01); std::istream istr01(&strbuf01); std::istream istr02(&strbuf02); // test negatives std::istream::sentry sentry01(istr01); VERIFY( bool(sentry01) == false ); std::istream::sentry sentry02(istr01, true); VERIFY( bool(sentry02) == false ); // positive tests std::istream::sentry sentry03(istr02); VERIFY( bool(sentry03) == true ); std::istream::sentry sentry04(istr02, true); VERIFY( bool(sentry04) == true ); } int main() { test01(); return 0; }